[The clinical study of 1,267 cases therapeutic keratoplasty using donor corneal grafts in long-time preservation with dehydrated].

Purpose: To evaluate its effects of 1,267 cases therapeutic keratoplasty using donor corneal grafts in long-time preservation with dehydrated.

Methods: The long-time preservated donor corneal grafts came from Xi'an Eye Bank, they accorded with the clinical demands. To select 1,267 cases therapeutic keratoplasty in August 1976 to December 1999, and make an analysis of preoperation and postoperation visual contrast, original focus controlling, donor corneal graft reviviscence.

Result: The transparent rate of donor corneal grafts after preservation was 94.9%, the clinical cure rate: Infective corneal ulcer/perforation 88.8%, pannus totalis and corneal opacity 98.3%, chemical burn and heat burn (perforation corneoblepharon) 92.1%, keratoconus and acute keratoconus 99.5%, corneal degeneration(marginal shallow of stroma) 99.0%, other cases 88.9%, mean all effective rate 93.5%.

Conclusion: 1. For the treatment of serious corneal infection, and cases which poorly respond to medicine, therapeutic keratoplasty may be the only effective method. 2.Long-time corneal dehydration in water-free calcium chloride-silica gel may provide clinical supply of corneal materials whenever necessary, so it is an easy and simple, highly applicable method.